CN1714613A - Salt-proof planting method for inland salinized soil - Google Patents
Salt-proof planting method for inland salinized soil Download PDFInfo
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Abstract
The present invention relates to salt-proof plantation method, and is especially the salt-proof plantation method for inland saline soil in ecological agriculture technology. The salt-proof plantation method features: dividing saline soil into alternately arranged ridges and furrows; making the furrows lower than the ridges; seeding or planting tree seedling inside furrows and filling loose soil to height still lower than the ridges; and irrigating after seedling or planting. The present invention improves saline soil in biological method through planting salt-enduring plants, such as wolfberry, eucommia, etc. The present invention has saving in power, simple operation and obvious effect of improving saline soil.
Description
Technical field:
The present invention relates generally to the anti-salt kind method for planting in salt marsh soil, relates in particular at landlocked saline soil anti-salt kind method for planting on the ground.Belong to the ecological agriculture.
Background technology:
The soil salinization is a key factor that influences agricultural production and ecotope.According to statistics, salt marsh soil, the whole world has 9.6 hundred million hectares, and the trend that enlarges is year by year arranged.Aggravation along with population, grain, soil, the energy and ecotope contradiction, to the exploitation in salt marsh soil and the problem that prevents secondary salt marsh become worldwide, a century property, the big problem that concerns sustainable development mentioned the agenda of various countries, and has been subjected to the great attention of national governments and scientific circles.
Cause the existing natural cause of factor of the soil salinization, human factor is arranged again, the former is salt redistributing at the earth's surface, and the latter is that reasons such as irrational farming cause.According to interrelated data, there is the threat that is subjected to secondary salt marsh about half 3,000 ten thousand mu of irrigated farmlands in 18 states of the U.S., and wherein 8,000,000 mu of soils seriously restrict crop yield because of salt marsh.The salt marsh soil that the Indian subcontinent is about 2,000 ten thousand acres.In 500,000 hectares of soils that The Nile, Egypt is irrigated, 40% is subjected to the threat of salt marsh.Similar problem is all arranged all over the world.Therefore, various countries are to the exploitation in salt marsh soil and prevent that the consciousness of secondary salt marsh problem from growing with each passing day.For example India preventing and controlling start from nineteen forty-one to salt marsh, just formulated the scheme that prevents salination and improvement soil at that time, set up particular study mechanism by 1975, set up special commission in 1978, some countries of Europe have set up nationwide salt marsh research center.Its improvement method adopted to wash the method for salt mostly in last century, not only cost dearly but also had little effect, and especially the landlocked ecosystem was run counter to desire.Say when summing up the work in 40 years in salt marsh laboratory as California, USA university: " drainage system is costly, and needs the energy, high-quality water and heavy construction, and these can cause adverse consequences again." to latter stage in last century, the Lewis Mayroeld of the U.S. has proposed the notion of biogenic salt research (Biosaline Research), goes research from methods such as biology, water conservancies, makes the control of salt marsh enter a new period.Holding of international biogenic salt academic conference obtained some progress that attract people's attention aspect the comprehensive regulation.Single-cell suspension culture systems as U.S. Goodin sets up from a large amount of cell masses with many somaclonal variations (Somaclone Variation), has filtered out salt tolerant cell-line.Pakistan carries out tissue culture with paddy rice, wheat seed in national agricultural research center, brings out callus in containing salt culture medium, and differentiates plantlet.The Philippine International Rice Research Institute adopts to plough deeply with gypsuming on the sodium salt lick and combines, and with paddy rice and wheat crop rotation, has reduced the exchangeable sodium in the soil.Halophyte are collected by states such as Egypt and Pakistan, as Atriplex Atriplexundwlata, and Sprangletop Leptochlora fusca etc., plantation has obtained success on the uncultivated area of height salt marsh.In the recent period, the applying transgene means have obtained salt tolerant tomato, salt tolerant clover.China Shandong Normal University clones the key gene of salt tolerant from alkali is fluffy, lay the foundation for cultivating novel salt-tolerant plant.
The salt marsh soil of China accounts for 1/4th of territory, except that part is distributed in North China, northeast and the coastal area, major part is distributed in two north, mainly is ground such as the west of a river, Gansu, Xinjiang, Qaidam, Qinghai, Yinchuan Plain in Ningxia and western part, Inner Mongol, about more than 200,000,000 mu of area.Improvement to salt marsh is started in the seventies in last century the Yellow River and Huai He River sea salt stain is administered, and the anti-salt cultivation of rice cultivation has now obtained significant effect.Past grain per unit area yield has only tens kilograms, reaches four or five hundred kilograms now, and the salt marsh area reduces 60%, has realized tentatively that from poverty to richly endowed, its achievement has caused great attention both domestic and external.The patent No. is 96111697.8, patent name is " method of planting paddy rice on heavy salinization soil ", disclose a kind of on the severe salinization soil method of rice cultivation, it mainly comprises to the processing of rice paddy seed with to the processing of soil, is to execute straw at topsoil to the processing of soil.And landlocked arid area is a closed ecosystem, and its salt marsh characteristics are more complicated, and difficulty of governance is bigger, up to the present, at home and abroad there is no tangible breakthrough.Main cause since the hinterland away from the ocean, dry, the river belongs to landlocked river system more, has formed an arid closed ecological system in inland.In the special ecosystem, not only salt marsh is general, and salt marsh becomes to be stranded.Its salification degree, salt are grouped into, the motion of water salt all is very different with the coastal area, and difficulty of prevention and cure is bigger relatively.The soil salinization has become a key factor that influences agriculture and forestry production and ecotope health.Along with the aggravation of population, grain, soil, energy contradiction, to the exploitation of saline soil with prevent that secondary salt marsh problem is very important.Especially Gansu Province goes into building of some large hydraulic engineerings such as the Qin greatly along with drawing, and secondary salinization will be more and more serious also.As not paying attention to the control of secondary salinization, will cause even more serious consequence than the Qin Wangchuan that puts down in writing on the historical data " soil property black alkali, ground is standing grain not, deceives bavin all over the fields, only bears evil and receives ".
To the improvement of salt marsh, the improvement of especially landlocked salt marsh, our years of researches confirm with biological control measure the most effectively and effect a permanent cure.But general plant is difficult to existence on the saline soil, even if also many weeds based on Chenopodiaceae are arranged, economic worth is lower, can utilize economic tree considerably less.
Summary of the invention:
The anti-salt kind method for planting that the objective of the invention is to avoid the deficiencies in the prior art part and a kind of landlocked saline soil earth is provided.
Purpose of the present invention can be by realizing by the following technical solutions: a kind of anti-salt kind method for planting of landlocked saline soil earth, its main feature be (1) with the soil in salt marsh district be divided into the ridge, furrow are alternate; (2) make the plot of land surface be lower than the terraced land surface; (3) a low furrow place sowing seed kind or year kind of a nursery stock; Planted ruins, back soil and filled out in the cave, made soil be lower than the high ridge.(4) having planted the back pours water in furrow.Water moves in soil capillary salinity is taken on the ridge, forms salification on the ridge and desalination in the furrow.The seedling root of sowing or plantation is distributed in the soil layer of desalination, can avoid the injury of salinity.
An important feature of landlocked salt marsh district water salt motion is, because evaporation is strong, the soil soluble-salt gathers in the face of land with water through capillary, makes many plants high-salt stress that is out of patience, and can't plant.Contain the more soil of water-soluble salt, there are salt efflorescence or salt incrustation in general surface, the electrical conductivity of soil saturation extract (Ece) greater than 4 milli west/centimetre; Exchangeable sodium percentage is lower than 15%; The pH value generally is no more than 8.5.Because the osmotic pressure of the soil solution is higher than the osmotic pressure of plant tissue, thereby plant is difficult to draw essential moisture and nutrient from soil, causes taking place physiological drought, undergrowth even death.After adopting the inventive method, most salinities rise to place, the high ridge with capillary, and low relatively furrow place salinity is lighter, just can avoid salt damage low furrow place plantation plant like this, improve plant survival rate.
The applying biological salt discharge can make the topsoil salinity reduce by 70%; Increase green the covering in two aspects of space-time then, make face of land violent evaporation change plant transpiration into, destroy soil capillarity, lowering of watertable, it is poly-to reduce the salt submeter.Foster and apply fertilizer by soil fertility, the soil organic matter is constantly increased, the bulk density of soil reduces, and granular structure is improved, become the plantation plant in, slight salt marsh environment.Appliable plant further improves the salt marsh environment again, just can become the soil of continuous utilization.
The width on the described ridge is looked floristics and is different, is generally 0.5-2M; The width of described furrow is 0.4-0.8M.The plot of land surface is lower than the terraced land surface and is 25-50cm.Form the narrow furrow in the wide ridge.
The anti-salt kind method for planting of described landlocked saline soil earth has comprised that also the 2-3 month is gathered nursery stock to A. then; B. nursery stock is heeled in earlier, heeled in ditch depth 50cm, stay the one side slope, put seedling layer by layer; Nursery stock fully scatters, and root system is not overlapping; Earlier seedling root is buried with soil, water permeablely, cover to height of seedling more than 2/3 with soil, treetop covers a little wheat straw; C. began plantation then later on April 5; D. adopt high-density planting; E. winter water of first watering in November is then irritated the full foot of irritating, behind the first quarter moon at root about half chi height of earthing up; F. stump bud picking; G. the wide filling cultivation mode of narrow Qiao.
Carry seedling at low furrow place, planted ruins, back soil and filled out in the cave, make soil be lower than the high ridge, the ridge, steady and sure cave; In time water once permeable after planting.
Described high-density planting is line-spacing 0.3-0.8m, and spacing in the rows 0.7-1.5m intersects and cultivates triangularity.
To be mid-March in next year rake the root ridging to described stump, with the first year branch cut (stump) from distance ground 5cm; Bud picking is that the arbor seedling only stays a strong bud, and other bud is erased; Shrub then stays 3-5 bud, and unnecessary erases.
The wide filling cultivation mode of described narrow Qiao is that two row constitute a band, and band and interband are every 1.5-2m; The cultivating seedlings of delegation cultivation is that nursery stock of arbor or shrubbery, another row cultivation is then cultivated into shrubbery.
The invention has the beneficial effects as follows, adopting biology is main method, improvement has utilized large stretch of saline soil, many plants are planted successfully in medium even severe salt marsh environment (plow layer 0-100cm soil total salt surpasses 1%), can plant for 2% kind at the soil total salt as matrimony vine and to survive, the bark of eucommia is planted for 1.6% kind at the soil total salt and is survived, and also has plants such as fetters willow, rose, willow also to plant and survives.Energy savings, simple to operate, at landlocked salt marsh district control salt damage, effect is remarkable.
Embodiment:
The experiment and demonstration district, 50 mu of salt marsh districts in Gansu.
Undressed salt-affected soil 0-100cm total salt content distribution situation (seeing Table 1)
Soil depth (cm) total salt content average salt content (X)
0-10 2.50
10-20 2.79
20-40 3.47
40-60 3.34
60-100 3.46 3.11
Can find out from last table, not adopt before the present invention that this area's salt-affected soil is because salt marsh content than higher, is not suitable for planting plant, the soil is large stretch of uncultivated.
Its reason is that landlocked salt marsh is under the salt marsh effect, and soil salt gathers in the face of land by capillarity and injures root system of plant.So a lot of crops comprise that some salt tolerant salt-resistant plants all are because seedling can't be resisted the serious salt marsh of upper soll layer, root system is pricked and is not gone down and death.
1. adopt the present invention to plant the bark of eucommia at salt lick.
The bark of eucommia (Eucommia ulmoides Oliv.) is the deciduous tree that Eucommiaceae, the bark of eucommia belong to, and is the living seeds of the Gu that left behind the Tertiary Period, originates in China's middle subtropical zone to the warm temperate zone.Be the distinctive economic tree of China, classify Chinese Second Class Key Protected Plant as.
Discovered in a large number both at home and abroad modern age, the bark of eucommia has many special physiology, pharmacological active substance, to improving immunity, bringing high blood pressure down, promote collagen synthetic, anti-aging in advance, anti-inflammation has tangible effect, succeeding in developing of high elastic Folium glue makes it demonstrate application prospect extensively on medical treatment, health care, industry even aerospace medicine in addition.At present in the world, especially Japan has started one bark of eucommia research heat, introduces a fine variety by turning to from a large amount of imported raw materials of China originally.
In recent years development is very rapid at home in bark of eucommia research, especially through we studies confirm that, and one of bark of eucommia original producton location, mountain forest district, little Gansu Province, Gansu, its quality is better than Shaanxi and Hunan product, and this causes the attention in the world.
(1) the 2-3 month is gathered bark of eucommia nursery stock then.
(2) bark of eucommia nursery stock is heeled in earlier, heels in ditch depth 50cm, stays the one side slope, puts seedling layer by layer.Nursery stock fully scatters, and root system is not overlapping.Earlier seedling root is buried with soil, water permeablely, cover to height of seedling more than 2/3 with soil, treetop covers a little wheat straw.Can avoid like this north early spring freeze injury, can keep nursery stock fresh again, make its growth progressively with introduce a fine variety ground weather synchronous.In order to adjust the original producton location and to introduce a fine variety of the influence of ground climate difference, heel in hardening to bark of eucommia plant percent.
(3) April-plantation in May then.
(4) soil with the salt marsh district is divided into the ridge, furrow are alternate.Make the plot of land surface be lower than terraced land surface 30cm.Carry seedling at low furrow place, planted ruins, back soil and filled out in the cave, make soil be lower than the high ridge, the ridge, steady and sure cave.The width on its ridge is 0.2-2M; The width of furrow is 0.2-2M.In afforestation hole, low furrow place, long * wide * as to be 30 * 30 * 40 centimetres deeply, every hole plants seedling one strain.
(5) high-density planting, line-spacing 0.3-0.8m, spacing in the rows 0.7-1.5m intersects and cultivates triangularity.Two row constitute a forest belt.The ridge is wide 1.5 or 2 meters, reproduces another group forest belt that parallels with it.When planting seedling is put in the planting hole, carries seedling earlier and unfold root system, soil is sprinkling upon on the root gently from the top down, the having peace of mind of seedling limit is proposed on the limit, and root is closely contacted with soil, ruins soil is filled out in the cave again, makes soil a little less than ground, the ridge, steady and sure cave; In time water once permeable (normal root water) after planting.One big characteristics of landlocked salt marsh are that evaporation is big, and the salt submeter is poly-strong.Be convenient to intensification production again in order to reduce the accumulation of salt in the surface soil, adopt to increase density, per hectare 9000 strains have obtained desirable effect like this.A. survival rate height, last year, survival rate reached 92.4%; B. closing are very fast, and the accumulation of salt in the surface soil is low, and salinity is reduced to 0-10cm total salt 0.98% then; 10-40cm total salt 0.75%; C. help windproof, minimizing wind erosion, also reduced the surface evaporation and the accumulation of salt in the surface soil; D. helping intensification produces and picking leaves.
(6) winter water of first watering in November is then irritated the full foot of irritating, behind the first quarter moon at root about half chi height of earthing up; Freeze injury and to drain be the factor that has a strong impact on seedling growth that very easily takes place winter, in order to prevent this injury, winter water of first watering in November is irritated the full foot of irritating, behind the first quarter moon at root about half chi height of earthing up.Whole nursery stock safe overwinterings can prevent freeze injury and drain.
(7) stump bud picking; Limb growth is very fast, but just closing in two months, frutescent then branch is up to 2.5-2.8m, arborescent can be up to 3-3.2m.To be mid-March in next year rake the root ridging to stump, with the first year branch cut (stump) from distance ground 5cm; Bud picking is that the arbor seedling only stays a strong bud, and other bud is erased, and so just grows a straight trunk.Shrub then stays 3-5 bud, and unnecessary erases.Grow several limb row like this and become the shrub shape.
(8) the wide filling cultivation mode of narrow Qiao.The wide filling cultivation mode of described narrow Qiao is that two row constitute a band, and band and interband are every 1.5-2m; The bark of eucommia cultivating seedlings of delegation's cultivation is that the bark of eucommia nursery stock of arbor, another row cultivation is then cultivated into shrubbery.Form high tall low the filling.Its advantage is: 1 tall filling combination; 2 picking leaves are adopted leather block and are closed, and help intensification and produce; 3 control salt combines with windproof.Can obtain bigger productivity effect and economic benefit.
Or being planted in the planting pit through the sapling of heeling in cultivation, burying soil, to be lower than ground surface be 30cm, and keep loosing soil in the cave, and the cave is along having peace of mind and build the low bank of earth between fields.
Water " normal root water " after planting immediately, water foot.If can increase plastic mulching keeps a full stand of seedings very beneficial to the west area.
Fertilising: execute farmyard manure 45-75t/ hectare before the afforestation.Later on can be high ridge place interplanting green manure vegetable hair sweet potato or clover.The two all drought resisting, cold-resistant, salt tolerant, to increasing soil fertility and realizing annual green the covering, the control salt marsh is highly beneficial.
Water: except that normal root water will water foot, 4-6 month last year looked soil moisture content and watered once in every month.
By nearly 5 years introduction and cultivation, take the plantation of low cave, increase planting density, salt-avoiding species planting technology measures such as interplanting green manure plant, experimental field introducing a fine variety the bark of eucommia and succeeing along the yellow Lanzhou, salt marsh district of irrigating, for salination soil biological treating and economic development provide a development wide economic tree that advances.
After cultivating the bark of eucommia in 3 years, primary salt lick soil salt has had obvious variation.See the following form 1:
Plantation bark of eucommia soil salt is measured (unit: g/kg)
Table 1
| Soil depth (cm) | Contrast (bare area) | The plantation bark of eucommia | |||||
| 1 year | 1 year | The 3rd year | |||||
| The ridge | Furrow | The ridge | Furrow | The ridge | Furrow | ||
| 0-10cm | 2.5 | 2.85 | 0.58 | 1.56 | 0.35 | 1.20 | 0.21 |
| 10-20 | 2.79 | 0.31 | 0.75 | 0.86 | |||
| 20-40 | 3.47 | 0.26 | 0.20 | 0.05 | |||
| 40-60 | 3.34 | 0.83 | 0.14 | 0.62 | |||
| 60-100 cm | 3.46 | 0.87 | 0.60 | 0.41 | |||
2. adopt the present invention to plant matrimony vine at salt lick.
Matrimony vine (Lycium barbarum L.) is a kind of traditional Chinese medicine that has won fame both at home and abroad, the trace element, multivitamin and the lycium barbarum polysaccharide that contain needed by human during cause and effect is real, human life metabolism and immunologic function there is obvious effect, especially the immunologic function of lycium barbarum polysaccharide, can be equal to mutually with preventing and treating acquired immune deficiency syndrome (AIDS) choice drug AZT, cause the very big interest of international medical community.
With the soil in salt marsh district be divided into the ridge, furrow are alternate.Make the plot of land surface be lower than the terraced land surface and be 25-35cm.Low furrow place plantation matrimony vine, the width of furrow is 0.4-0.8M, and the ridge is wide 1 or 1.5 meter, reproduces another group matrimony vine that parallels with it.
Being planted in the low furrow through the sapling of cultivating, keep loosing soil, it is steady and sure that want on the furrow ridge.Or planting pit buries soil to be lower than ground surface is 30cm, and keeps loosing soil in the cave, and the cave is along having peace of mind and build the low bank of earth between fields.
Matrimony vine can be planted on primary salt lick (wasteland) or secondary salt marsh old-field, need not take high-quality and plough, and this is first aspect of creating economic benefit.In addition, plant matrimony vine and plant then, bear fruit then, 1 year every mu can produce 50 kilograms in dry fruit, can reach more than 150 kilograms in the 3rd year, entered the full bearing period on the 5th year.If calculate with 12 yuan/kg of minimum procurement price, 700 yuan every mu of second annual value of production just can reach 1800 yuan on the 3rd year, and income is higher after the 4th year.Can bring remarkable economic efficiency to the salt marsh district undoubtedly.
After planting matrimony vine in 3 years, primary salt lick soil salt has had obvious variation.See the following form 2:
Plantation matrimony vine soil salt is measured (unit: g/kg)
Table 2
| Soil depth (cm) | Contrast (bare area) | The plantation matrimony vine | |||||
| 1 year | 1 year | The 3rd year | |||||
| The ridge | Furrow | The ridge | Furrow | The ridge | Furrow | ||
| 0-20cm | 2.5 | 2.85 | 0.8 | 1.56 | 0.65 | 1.20 | 0.32 |
| 20-40 cm | 1.5 | 1.75 | 1.2 | 1.20 | 0.9 | 0.9 | 0.60 |
| Ti | 4.0 | 4.45 | 2.0 | 2.76 | 1.55 | 2.1 | 0.92 |
| X | 2.0 | 2.3 | 1.0 | 1.38 | 0.77 | 1.05 | 0.46 |
Can find out that from table the soil salt rises on the ridge with capillarity or around the cave, and does not injure root system of plant, help seedling and take root and survive.In utilizing the low high ridge of furrow cultivated plant, more than soil salt on the survey ridge was up to 1-2%, low furrow place salt was about 0.6%.
In addition, adopt the present invention all to succeed plants such as heavily salted ground plantation fetters willow, rose, willow and mulberry treies.Especially adopt the intercropping of woods grass, plant tree in furrow, herbage (clover etc.) the transformation salt marsh of planting salt tolerant on the ridge is more effective.
Claims (8)
1. the anti-salt kind method for planting of a landlocked saline soil earth, it is characterized in that (1) with the soil in salt marsh district be divided into the ridge, furrow are alternate; (2) make the plot of land surface be lower than the terraced land surface; (3) a low furrow place sowing seed kind or year kind of a nursery stock; (4) having planted the back pours water in furrow.
2. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 1, the width that it is characterized in that the described ridge is 0.5-2M; The width of described furrow is 0.4-0.8M.
3. as the anti-salt kind method for planting of claim 1,2 described landlocked saline soil earth, it is characterized in that the plot of land surface is lower than the terraced land surface and is 25-50cm.
4. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 3 is characterized in that also having comprised that the 2-3 month is gathered nursery stock to A. then; B. nursery stock is heeled in earlier, heeled in ditch depth 50cm, stay the one side slope, put seedling layer by layer; Nursery stock fully scatters, and root system is not overlapping; Earlier seedling root is buried with soil, water permeablely, cover to height of seedling more than 2/3 with soil, treetop covers a little wheat straw; C. began plantation then later on April 5; D. adopt high-density planting; E. winter water of first watering in November is then irritated the full foot of irritating, behind the first quarter moon at root about half chi height of earthing up; F. stump bud picking; G. the wide filling cultivation mode of narrow Qiao.
5. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 4 is characterized in that also having comprised at low furrow place and carries seedling, has planted ruins, back soil and has filled out in the cave, makes soil be lower than the high ridge, the ridge, steady and sure cave; In time water once permeable after planting.
6. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 5 is characterized in that also having comprised that described high-density planting is line-spacing 0.3-0.8m, and spacing in the rows 0.7-1.5m intersects and cultivates triangularity.
7. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 6 is characterized in that also having comprised that described stump is arranged is mid-March in next year that the root ridging is raked, with the first year branch cut (stump) from distance ground 5cm; Bud picking is that the arbor seedling only stays a strong bud, and other bud is erased; Shrub then stays 3-5 bud, and unnecessary erases.
8. the anti-salt kind method for planting of landlocked saline soil earth as claimed in claim 7, it is characterized in that also including the wide filling cultivation mode of described narrow Qiao is that two row constitute a band, band and interband are every 1.5-2m; The nursery stock of delegation cultivation can be cultivated to nursery stock of arbor or shrubbery, another row cultivation and then cultivate into shrubbery.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640653A (en) * | 2012-05-10 | 2012-08-22 | 山东省农业科学院高新技术研究中心 | Method utilizing coastal saline soil of Yellow River Delta to grow peanuts |
| CN104782464A (en) * | 2015-05-05 | 2015-07-22 | 曾莉 | Method for reducing calcium ion concentration in soilless cultivation and method for softening culture solution |
| CN109964578A (en) * | 2019-04-15 | 2019-07-05 | 石河子大学 | A kind of cultural method of rape and fructus lycii intercropping improvement salt-soda soil |
-
2004
- 2004-07-04 CN CNB2004100263200A patent/CN100340149C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102640653A (en) * | 2012-05-10 | 2012-08-22 | 山东省农业科学院高新技术研究中心 | Method utilizing coastal saline soil of Yellow River Delta to grow peanuts |
| CN104782464A (en) * | 2015-05-05 | 2015-07-22 | 曾莉 | Method for reducing calcium ion concentration in soilless cultivation and method for softening culture solution |
| CN109964578A (en) * | 2019-04-15 | 2019-07-05 | 石河子大学 | A kind of cultural method of rape and fructus lycii intercropping improvement salt-soda soil |
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| CN100340149C (en) | 2007-10-03 |
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